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BMW replaces tri-turbo diesel with a quad turbo

Quad turbos have until now been the stuff of Bugattis. BMW is introducing a quad turbo diesel for the 7 Series, with nearly one hundred horsepower per turbo. It's all about making the six-cylinder 3.0-liter turbodiesel all as enticing a proposition as possible, and it faces strong competition from Audi's new twin-turbo V8 diesel available in the SQ7 TDI. The earlier, N57S engine (pictured above) utilized a triple-turbo setup good for 381 horsepower and 546 lb-ft. The new B57 version, confirmed by BMW at the 37th International Vienna Motor Symposium, adds yet another turbo for 394 hp and 561 lb-ft, and that massive torque is available from 2,000 to 3,000 rpm. It means the 7 Series gets from 0-60 mph in a snappy 4.5 seconds. The engine could produce even more torque, but 561 lb-ft is all the ZF 8HP 8-speed automatic transmission can handle. The N57S engine's dual-stage turbocharging setup consisted of one low-pressure turbocharger to take care of low-end torque, and two high-pressure turbos for the higher rev range. In the new B57 engine, the big turbo is now replaced with two smaller units on a common exhaust, to benefit from lower costs and smaller unit weight. In addition to the gains in power and torque, fuel economy has reportedly been improved by 5 percent. There are no reports yet whether the B57 TOP quad-turbo will make it to the US market, but customers in the European high end diesel saloon market will probably be very excited. Initially it will be available in the 750d xDrive version, and other top-end models like the 5 Series and the X5 will follow later on. Related Video: News Source: Krone.atImage Credit: BMW BMW Diesel Vehicles Luxury Performance Sedan confirmed vienna motor symposium

The List: Best of proving grounds

Proving grounds are where automakers and enthusiasts alike go to push their vehicles to their mechanical limits. The Rubicon Trail, located in the Sierra Nevada, is the ultimate off-road test, while Germany's Nurburgring is a grueling 13 mile road and track course. Jessi and Patrick visit both iconic proving grounds in this "best of" compilation of The List. If you like what you see, stay tuned to watch the full episodes, or click here to go directly to our episode archive and pick out some of your own favorite moments of The List to revisit. The List #0004: Conquer the Rubicon Trail The List #0073: Drive the Nurburgring Have an RSS feed? Click here to add The List. Click here to subscribe to The List in iTunes. Click here to learn more about our hosts, Jessi and Patrick. BMW Jeep Off-Road Vehicles Racing Vehicles The List Videos Original Video

BMW reveals new seven-seat 2 Series Gran Tourer [w/video]

Everything is turning up Gran over at BMW these days. The 4 Series and 6 Series sprout extra doors to become Gran Coupes. The 3 Series and 5 Series get weird rooflines to become Gran Turismos. And now the 2 Series Active Tourer has grown an extra row of seats to become the Gran Tourer. What we're looking at is essentially the same mini-minivan/tall-hatchback that emerged almost exactly a year ago as the first front-drive model in BMW's history. Only in the guise of the new 2 Series Gran Tourer, it's been stretched to accommodate that third row of seats to give it seven-seat capacity – which was to be expected, of course, but is still fairly impressive considering how compact this vehicle actually is. It may be less than ten inches longer than the five-seat Active Tourer, but it's still smaller than just about any seven-seater on the market, and to hear the Bavarians tell it, it's "the world's first premium compact model to offer up to seven seats." Those seats are optional and can fold under the floor, and the middle row splits 40:20:40 and folds flat at the push of a button to give the 2 Series Gran Tourer a flexible cargo capacity ranging from 22.7 cubic feet all the way up to 67 cu ft. All of that in a vehicle no longer than a Ford Focus, which even in European wagon form can only swallow 53 cu ft with the seats folded – and you can forget about the extra seats in the Focus. European buyers will be able to choose between five engine options with three or four cylinders and ranging from 116 horsepower to 192. Available all-wheel drive might make you forget it's riding on a front-drive platform altogether (but not likely). Either way, the five-seat Active Tourer hasn't found its way to US showrooms, so we won't expect to see this new seven-seat version here either. At least not for the time being. But we'll surely have the chance to check it out in person for you next month at the Geneva Motor Show. The new BMW 2 Series Gran Tourer. 11.02.2015 With the new BMW 2 Series Gran Tourer, BMW has carved out yet another new vehicle segment. With its generous space, versatility and groundbreaking flexibility, the BMW 2 Series Gran Tourer is the world's first premium compact model to offer up to seven seats and fully meet the mobility requirements of young families. Compact yet capacious.